Home / 80,812,672.80-121,295,116.80-42,501,681.60

Finding the Fourth Proportional to 80,812,672.80, 121,295,116.80 and 42,501,681.60

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Solution

The fourth proportional to 80,812,672.80, 121,295,116.80 and 42,501,681.60 is: 63,792,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,812,672.80 : 121,295,116.80 = 42,501,681.60 : x
  2. Step 2: Convert to fraction form
    80,812,672.80/121,295,116.80 = 42,501,681.60/x
  3. Step 3: Cross multiply
    80,812,672.80x = 121,295,116.80 × 42,501,681.60
  4. Step 4: Simplify right side
    80,812,672.80x = 5,155,246,433,868,411
  5. Step 5: Solve for x
    x = 5,155,246,433,868,411/80,812,672.80
  6. Step 6: Final answer
    x = 63,792,549.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.